In many cases, it occurs during the distributionstage of the supply chain flow, which can be quite complex for pharmaceuticals.
在大部分情况下发生在供应链的分发阶段，对于药品而言，这个阶段是非常复杂的。
2
How to improve the performance of supply chain at distributionstage is discussed from the point of view of value chain and knowledge management.
从价值链理论和知识管理理论角度讨论了改进供应链分销阶段过程绩效水平的方法。
3
Conclusion: Applying catalytic models to fit the positive rate of stool examination age distribution data of schistosomiasis, two-stage catalytic model is much better.